Mobile, AL 36608 Frost Dates
When can you plant in Mobile, AL?
The last spring frost here typically falls around 03/03, about 187 days from today. The first fall frost typically arrives around 11/25, about 268 frost-free days later.
Zone 9a (20 to 25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Mobile, not a forecast for this year.
What to do before the first frost
About 13 weeks of growing season left in Mobile before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/03 isn't a guarantee
03/03 is the middle of 30 years of NOAA records, not a promise. Plant by 02/06 and you're betting against frost in roughly 9 years out of 10. 03/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mobile compares
At roughly 268 frost-free days, Mobile places 5,710 of 40,283 ZIP codes in this dataset. Within AL, it ranks 57 of 809.
Learn more
zone vs. frost date covers why Zone 9a and Mobile's frost date answer different questions. the frost range covers how to read the range around Mobile's dates instead of trusting one.